A hydrogen cylinder fixing structure for a drone

Abstract

The application relates to a hydrogen cylinder fixing structure for a unmanned aerial vehicle and belongs to the technical field of unmanned aerial vehicles. The fixing structure comprises a support frame, a limiting mechanism and an elastic abutting mechanism. The support frame is used for being mounted on a hydrogen cylinder. The limiting mechanism and the elastic abutting mechanism are both used for being mounted on a unmanned aerial vehicle. The limiting mechanism and the elastic abutting mechanism are arranged at intervals. The support frame is inserted between the limiting mechanism and the elastic abutting mechanism. One end of the support frame in the length direction is in abutment with the limiting mechanism, and the other end is in abutment with the elastic abutting mechanism. The elastic abutting mechanism is used for abutting the support frame and the limiting mechanism. Through the cooperation of the support frame, the elastic abutting mechanism and the limiting mechanism, the support frame can be quickly mounted between the elastic abutting mechanism and the limiting mechanism. In addition, the support frame can also be quickly dismounted from between the elastic abutting mechanism and the limiting mechanism. Therefore, the convenience of dismounting and mounting the hydrogen cylinder can be improved, and the requirement that the hydrogen cylinder on the unmanned aerial vehicle is convenient to replace can be met.

Description

Technical Field

[0001] This application relates to the technical field of unmanned aerial vehicles (UAVs), and in particular to a hydrogen cylinder fixing structure for UAVs. Background Technology

[0002] Currently, hydrogen energy is being used in the field of drones, with hydrogen-powered drones typically employing hydrogen fuel cells or hydrogen fuel engines as their power source. Therefore, the hydrogen storage structure is a crucial component for hydrogen-powered drones, significantly impacting their operational stability, range, and safety.

[0003] Most existing hydrogen-powered drones use hydrogen cylinders for hydrogen storage. When the hydrogen cylinder is installed on the drone, it can continuously supply hydrogen to the drone, thus ensuring stable flight.

[0004] To ensure the stability of hydrogen cylinder installation, current hydrogen-powered drones primarily use bolts and clamps for cylinder mounting. This installation method makes cylinder replacement cumbersome and time-consuming, requiring additional disassembly tools. Summary of the Invention

[0005] This application provides a hydrogen cylinder fixing structure for drones, the purpose of which is to reduce the difficulty of replacing hydrogen cylinders on drones, thereby facilitating the disassembly and replacement of hydrogen cylinders on drones.

[0006] The technical solution for fixing a hydrogen cylinder for a drone provided in this application is as follows:

[0007] A hydrogen cylinder fixing structure for a drone includes a support frame, a limiting mechanism, and an elastic clamping mechanism. The support frame is used to install onto the hydrogen cylinder, and both the limiting mechanism and the elastic clamping mechanism are used to install onto the drone. The limiting mechanism and the elastic clamping mechanism are spaced apart, and the support frame is inserted between the limiting mechanism and the elastic clamping mechanism. One end of the support frame abuts against the limiting mechanism along its length, and the other end abuts against the elastic clamping mechanism. The elastic clamping mechanism is used to push the support frame to clamp against the limiting mechanism.

[0008] By adopting the above technical solution, through the coordinated design of the support frame, limiting mechanism, and elastic clamping mechanism, when installing the hydrogen cylinder, the support frame is inserted between the limiting mechanism and the elastic clamping mechanism, with one end of the support frame abutting against the limiting mechanism and the other end abutting against the elastic clamping mechanism. At this time, the elastic clamping mechanism pushes the support frame, causing the support frame to clamp against the limiting mechanism, thereby clamping and fixing the support frame between the elastic clamping mechanism and the limiting mechanism. When disassembling the hydrogen cylinder, the force applied to the support frame by the elastic clamping mechanism is released, which releases the fixation of the support frame, allowing the support frame to be removed from between the elastic clamping mechanism and the limiting mechanism, thus realizing the disassembly of the hydrogen cylinder.

[0009] This design, with both ends of the support frame secured by contact, reduces the difficulty of assembling and disassembling the support frame, thus reducing the difficulty of assembling and disassembling the hydrogen cylinder. Therefore, this design simplifies the replacement of hydrogen cylinders on drones, thereby meeting the need for easy replacement of hydrogen cylinders on drones.

[0010] Optionally, the elastic clamping mechanism includes a mounting base, a push rod, and an abutment spring. The push rod is arranged along the length direction of the support frame, and one end of the push rod abuts against the support frame. The push rod is slidably connected to the mounting base along its own length direction. The abutment spring is sleeved on the outside of the push rod, with one end connected to the push rod and the other end connected to the mounting base.

[0011] By adopting the above technical solution, the elastic clamping mechanism is designed with a mounting base, a push rod, and a contact spring. The mounting base can be installed on the drone, thereby realizing the connection between the elastic clamping mechanism 3 and the drone. The push rod is slidably connected to the mounting base, and the contact spring is sleeved on the outside of the push rod. Therefore, when the push rod is subjected to external force, the push rod will move along its own axis. At this time, the push rod will drive the contact spring to contract or stretch. When the external force applied to the push rod is released, the contact spring will reset under its own elastic force, thereby driving the push rod to move along its own axis.

[0012] Therefore, based on the design of the elastic clamping mechanism, when installing the hydrogen cylinder, the push rod is manually pushed to compress the contact spring, allowing the space between the push rod and the limiting mechanism to accommodate the support frame, and enabling the support frame to insert between the limiting mechanism and the elastic clamping mechanism. Once the support frame is in place, the force applied to the push rod is released. At this point, the contact spring resets and pushes the push rod forward, causing the push rod to contact the support frame. Under the elastic force of the contact spring, the push rod pushes the support frame to clamp tightly against the limiting mechanism. This fulfills the function of the elastic clamping mechanism, ensuring a tight contact between the support frame and the limiting mechanism.

[0013] Optionally, the support frame, the limiting mechanism, the mounting base, and the top rod are all made of aluminum alloy.

[0014] By adopting the above technical solution, the support frame, limiting mechanism, mounting base, and top rod are all made of aluminum alloy. Aluminum alloy is characterized by high strength and light weight. The selection of aluminum alloy material can effectively reduce the overall weight of the fixed structure while ensuring that each component has sufficient strength and durability, reducing the impact on the drone's endurance, and ensuring that the fixed structure can withstand various loads and environmental conditions during drone flight, thus combining the advantages of lightweight and high strength.

[0015] Optionally, a positioning seat is provided at one end of the support frame along its length. The positioning seat is positioned opposite the top rod, and a locking groove is provided on the side of the positioning seat facing the top rod. One end of the top rod is inserted into the locking groove.

[0016] By adopting the above technical solution, the positioning seat and the locking groove on the positioning seat enable the top rod to contact the positioning seat on the support frame when one end of the top rod abuts against the support frame, and the top rod and the locking groove are inserted and matched. This increases the contact area and connection reliability between the top rod and the support frame, reduces the possibility of the top rod separating from the support frame, thereby improving the stability of the entire fixed structure and ensuring that the connection between the support frame and the elastic clamping mechanism is stable during the flight of the UAV.

[0017] Optionally, the limiting mechanism includes a base plate, a side plate is provided on the base plate, the side plate is perpendicular to the base plate, and a limiting groove is provided on the side plate; a limiting slide post is provided on the support frame, the limiting slide post is inserted into the limiting groove, and the limiting slide post is slidably connected to the inner wall of the limiting groove.

[0018] By adopting the above technical solution, the limiting mechanism includes a base plate that can be mounted on a drone, thereby connecting the limiting mechanism to the drone. The base plate has a side plate with a limiting groove, and a limiting column is provided on the support frame. The limiting column and the limiting groove are inserted into and slidably connected. Based on the cooperative design of the limiting groove and the limiting column, when installing the hydrogen cylinder, the support frame is installed between the limiting mechanism and the elastic clamping mechanism. At this time, the limiting column is inserted into the limiting groove, and the limiting groove guides and restricts the movement of the limiting column, ensuring that the support frame can be inserted and fixed in the correct direction. Simultaneously, when the limiting column moves within the limiting groove to abut the inner wall of the limiting groove, it can limit one end of the support frame, thus fulfilling the function of the limiting mechanism.

[0019] Optionally, two side plates are provided, both of which are disposed on the base plate, and the two side plates are arranged in parallel and spaced apart to form positioning slots, and the support frame engages with the positioning slots.

[0020] By adopting the above technical solution, the setting of the two side plates creates a positioning groove between the two side walls. When installing the support frame, the support frame can engage with the positioning groove, which can improve the accuracy of the support frame installation and positioning.

[0021] Optionally, the support frame is provided with a plurality of straps, which are arranged at intervals along the length of the support frame, and the straps are used to fix the hydrogen cylinder.

[0022] By adopting the above technical solution, the support frame is equipped with several straps for securing the hydrogen cylinder. Therefore, the strap design allows for quick and easy attachment of the hydrogen cylinder to the support frame, enabling a detachable connection between the hydrogen cylinder and the support frame, which facilitates rapid cylinder replacement. The straps, combined with the limiting mechanism and the elastic clamping mechanism, work together to improve the stability of the hydrogen cylinder's fixation. Simultaneously, the strap design ensures that the hydrogen cylinder is tightly secured after installation, preventing it from shaking or shifting during drone flight, further enhancing the reliability of the hydrogen cylinder installation.

[0023] Optionally, the support frame is provided with a lifting handle.

[0024] By adopting the above technical solution, the handle design provides the operator with a point of leverage. When installing and disassembling hydrogen cylinders, the operator can more easily insert or pull out the support frame with the help of the handle. At the same time, the handle also makes it easy to carry and move the support frame with hydrogen cylinders, improving the convenience and efficiency of operation. Especially when hydrogen cylinders need to be changed frequently, the handle can significantly reduce the labor intensity of the operator.

[0025] Optionally, a locking mechanism is also included, comprising a base for mounting to the drone and positioned between the limiting mechanism and the elastic clamping mechanism. The base has a first arc rod and a second arc rod spaced apart along the width of the support frame. A mounting hole is formed between the first arc rod, the second arc rod, and the base. The support frame is located within the mounting hole, which is used to secure the hydrogen cylinder. One end of the first arc rod is rotatably connected to the base, and a first rotation reset element is provided between the first arc rod and the base. One end of the second arc rod is rotatably connected to the base, and a second rotation reset element is provided between the second arc rod and the base. An insertion groove is formed between the end of the first arc rod away from the base and the end of the second arc rod on the base, spaced apart.

[0026] By adopting the above technical solution, the locking mechanism includes a base, a first arc rod, and a second arc rod. The base is located between the limiting mechanism and the elastic clamping mechanism, which forms a mounting hole between the first arc rod, the second arc rod, and the base. The support frame is located within the mounting hole. Since the first arc rod and the second arc rod are spaced apart along the width direction of the support frame and rotatably connected to the base, the first arc rod and the second arc rod can automatically rotate to open the mounting hole. With the cooperation of the first rotation reset component and the second rotation reset component, the first arc rod and the second arc rod can be automatically reset after rotation.

[0027] Therefore, based on the design of the locking mechanism, when installing the hydrogen cylinder, the hydrogen cylinder is inserted into the mounting hole through the insertion slot. During this process, the hydrogen cylinder will rotate away from the first and second arc rods, ensuring that the hydrogen cylinder can pass through the insertion slot and enter the mounting hole. Afterwards, under the action of the first and second rotational reset components, the first and second arc rods rotate towards the hydrogen cylinder to their reset position. This allows the first and second arc rods to reset and contact the outer wall of the hydrogen cylinder, achieving automatic fixing of the hydrogen cylinder. When disassembling the hydrogen cylinder, pulling the hydrogen cylinder or spreading the first and second arc rods allows the hydrogen cylinder to automatically detach from the mounting hole.

[0028] The locking mechanism, limiting mechanism, and elastic clamping mechanism work together to limit the hydrogen cylinder in multiple directions, improving the stability of the fixing structure in securing the hydrogen cylinder while ensuring that the hydrogen cylinder can be easily replaced.

[0029] Optionally, it also includes a shield plate, which is arranged parallel to and spaced apart from the support frame. The shield plate is provided with a detachable connection component, which is detachably connected to the support frame.

[0030] By adopting the above technical solution, the shield plate and support frame are arranged parallel and spaced apart, with the hydrogen cylinder located between the shield plate and the support frame. The shield plate is detachably connected to the support frame via a detachable connector, allowing the shield plate to be freely selected for installation. When the shield plate is installed, it provides additional protection for the hydrogen cylinder, preventing it from being subjected to external impacts or collisions. Simultaneously, the spaced arrangement between the hydrogen cylinder and the support frame prevents impacts on the shield plate from being transmitted to the hydrogen cylinder, improving its safety. Without the shield plate, the lightweight design requirements of the fixed structure can be met.

[0031] In summary, this application includes at least one of the following beneficial technical effects:

[0032] 1. This application utilizes a design that combines a support frame, an elastic clamping mechanism, and a limiting mechanism. The support frame can be quickly installed between the elastic clamping mechanism and the limiting mechanism, and it can also be quickly disassembled from between the elastic clamping mechanism and the limiting mechanism. This improves the ease of installation and removal of hydrogen cylinders, thereby meeting the need for easy replacement of hydrogen cylinders on drones.

[0033] 2. This application utilizes a locking mechanism design where the locking mechanism, limiting mechanism, and elastic clamping mechanism work together to limit and fix the hydrogen cylinder in multiple directions. This improves the stability of the fixing structure for fixing the hydrogen cylinder while ensuring that the hydrogen cylinder can be easily replaced.

[0034] 3. Through the design of the shield plate, this application allows for the selection of whether or not to install the shield plate according to actual needs. When not installed, it ensures the lightweight of the fixed structure; when installed, it improves the protective performance of the hydrogen cylinder.

[0035] 4. By selecting aluminum alloy materials, this application can effectively reduce the weight of the structure, meet the requirements for lightweight fixed structures, and reduce the impact on the drone's endurance. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the overall structure of the fixed structure in Embodiment 1 of this application.

[0037] Figure 2 This is a schematic diagram of the overall structure of the fixed structure with a hydrogen cylinder installed in Embodiment 1 of this application.

[0038] Figure 3 yes Figure 2 A magnified schematic diagram of part A in the middle.

[0039] Figure 4 This is a schematic diagram of the overall structure of the limiting mechanism in Embodiment 1 of this application.

[0040] Figure 5 yes Figure 2 A magnified schematic diagram of part B in the middle section.

[0041] Figure 6 This is a cross-sectional structural schematic diagram of the elastic clamping mechanism of Embodiment 1 of this application.

[0042] Figure 7 This is a schematic diagram of the overall structure of the fixed structure with a hydrogen cylinder installed in Embodiment 2 of this application.

[0043] Figure 8 This is a schematic diagram of the overall structure of the locking mechanism in Embodiment 2 of this application.

[0044] Figure 9This is a schematic diagram of the overall structure of the fixed structure with a hydrogen cylinder installed in Embodiment 3 of this application.

[0045] Figure 10 This is a schematic diagram of the overall structure of the locking mechanism in Embodiment 3 of this application.

[0046] Figure 11 This is a schematic diagram of the overall structure of the support frame in Embodiment 3 of this application.

[0047] Figure 12 This is a schematic diagram of the overall structure of the linkage locking mechanism in Embodiment 3 of this application.

[0048] Figure 13 This is a cross-sectional structural diagram of the base of Embodiment 3 of this application.

[0049] Figure 14 This is a schematic diagram of the overall structure of the fixed structure with a hydrogen cylinder installed in Embodiment 4 of this application.

[0050] In the diagram, 1. Support frame; 11. Straps; 111. Straps; 112. Fixing straps; 12. Lifting handle; 13. Limiting slide column; 14. Positioning seat; 141. Locking groove; 15. Linkage block; 2. Limiting mechanism; 21. Base plate; 22. Side plate; 23. Positioning slot; 24. Limiting slide groove; 241. Linear slide groove; 242. Vertical slide groove; 3. Elastic clamping mechanism; 31. Mounting seat; 311. Guide slide groove; 32. Top rod; 33. Contact spring; 4. Locking mechanism; 41. Fixing mechanism; 42. Base; 43. First arc rod; 44. Second arc rod; 45. First rotation reset component; 46. Second rotation reset component; 47. Mounting hole; 48. Insertion groove; 59. Linkage locking mechanism; 50. Linear slide plate; 511. Linkage groove; 52. Linkage assembly; 521. Reversing rod; 522. Vertical rod; 523. Vertical guide groove; 53. Clearance cavity; 60. Shield plate; 61. Easy-to-disassemble connection assembly; 611. Annular connecting frame; 100. Hydrogen cylinder. Detailed Implementation

[0051] The following is in conjunction with the appendix Figure 1 - Appendix Figure 14 This application will be described in further detail below.

[0052] Example 1: A hydrogen cylinder fixing structure for a drone, referring to... Figure 1 It includes a support frame 1, a limiting mechanism 2, and an elastic clamping mechanism 3.

[0053] Reference Figure 1 and Figure 2The support frame 1 is located outside the hydrogen cylinder 100. The support frame 1 is detachably connected to the hydrogen cylinder 100, and its length is aligned with the axial direction of the hydrogen cylinder 100. The limiting mechanism 2 and the elastic abutment mechanism 3 are both mounted on the drone. The limiting mechanism 2 and the elastic abutment mechanism 3 are spaced apart, and the spacing between them is aligned with the length of the support frame 1. The support frame 1 is inserted between the limiting mechanism 2 and the elastic abutment mechanism 3, with one end of the support frame 1 abutting against the limiting mechanism 2 and the other end abutting against the elastic abutment mechanism 3 along its length.

[0054] The elastic clamping mechanism 3 generates a pushing force on the support frame 1 through its own elastic deformation, causing the support frame 1 to clamp against the limiting mechanism 2. This results in both ends of the support frame 1 clamping against the limiting mechanism 2 and the elastic clamping mechanism 3 respectively, thus locking the support frame 1 between the limiting mechanism 2 and the elastic clamping mechanism 3. This enables the installation of the hydrogen cylinder 100.

[0055] Reference Figure 2 The support frame 1 is provided with several straps 11, which are arranged at intervals along the length of the support frame 1, and all the straps 11 are sleeved on the outside of the hydrogen cylinder 100.

[0056] The strap 11 can tightly bind the hydrogen cylinder 100 to the support frame 1, which realizes the detachable connection between the support frame 1 and the hydrogen cylinder 100, thus facilitating the replacement of the hydrogen cylinder 100.

[0057] Reference Figure 2 In this embodiment, the strap 11 includes a strap base 111 and a fixing strap 112. The strap base 111 is integrally formed with the support frame 1, and the length direction of the strap base 111 is arranged along the width direction of the support frame 1. One end of the fixing strap 112 is connected to the support frame 1, and the other end is detachably connected to the strap base 111.

[0058] The design of the binding seat 111 enables the binding and fixing of the fixing strap 112 and the support frame 1. The detachable connection between one end of the fixing strap 112 and the binding seat 111 facilitates the quick disassembly or tightening of the fixing strap 112, which in turn facilitates the assembly and disassembly of the support frame 1 and the hydrogen cylinder 100.

[0059] Specifically, in this embodiment, the detachable connection between the fixing strap 112 and the binding seat 111 is achieved through a buckle connection or a bolt connection.

[0060] Reference Figure 2 A lifting handle 12 is provided at one end of the support frame 1 along its length, and the length of the lifting handle 12 is along the length of the support frame 1.

[0061] The lifting handle 12 improves the convenience and efficiency of operation. When installing and removing the hydrogen cylinder 100, the operator can more easily insert or pull out the support frame 1 by pulling the handle 12. At the same time, the lifting handle 12 also facilitates the handling of the hydrogen cylinder 100.

[0062] Reference Figure 3 and Figure 4 The limiting mechanism 2 includes a base plate 21 and two side plates 22. The side plates 22 are disposed on the base plate 21 and are perpendicular to each other. The two side plates 22 are arranged parallel to each other along the length direction of the base plate 21 to form positioning grooves 23. The support frame 1 is arranged parallel to the base plate 21 and its length direction is arranged along the width direction of the base plate 21. The support frame 1 is inserted into the positioning grooves 23.

[0063] The formation of the positioning slot 23 on the limiting mechanism 2 allows the positioning slot 23 to engage with the support frame 1, which ensures accurate positioning of the support frame 1 during installation.

[0064] Reference Figure 4 In this embodiment, the base plate 21 has several through holes, and the base plate 21 is connected to the corresponding position on the UAV by bolts.

[0065] Reference Figure 3 and Figure 4 A limiting groove 24 is provided on the side plate 22, and a limiting slide column 13 is provided on the support frame 1. The limiting slide column 13 is axially arranged along the width direction of the support frame 1. Both ends of the limiting slide column 13 are respectively inserted into the corresponding limiting groove 24, and the limiting slide column 13 is slidably connected to the inner side wall of the limiting groove 24.

[0066] The design of the limiting slide groove 24 and the limiting slide post 13 allows the limiting slide post 13 to slide in the limiting slide groove 24. The limiting slide groove 24 guides and restricts the movement of the limiting slide post 13, ensuring that the support frame 1 can be inserted and fixed in the correct direction.

[0067] Reference Figure 3 and Figure 4 In this embodiment, the limiting slide 24 includes a straight slide 241, the length of which is arranged along the length of the support frame 1. The limiting slide 24 also includes a vertical slide 242, the length of which is arranged along the spacing between the support frame 1 and the base plate 21, and the vertical slide 242 passes through the side of the corresponding side plate 22 opposite to the base plate 21.

[0068] Reference Figure 2 and Figure 4 The end of the vertical slide 242 facing the base plate 21 along its own length direction is connected to the end of the straight slide 241 near the elastic clamping mechanism 3 along its own length direction.

[0069] Reference Figure 3 and Figure 4 The limiting slide post 13 is inserted into the corresponding vertical slide groove 242, and the limiting slide post 13 is slidably connected to the inner wall of the corresponding linear slide groove 241.

[0070] The limiting slide 24, through the design of the straight slide 241 and the vertical slide 242, allows the limiting slide post 13 to be inserted downwards along the vertical slide 242 into the straight slide 241 during the installation of the support frame 1, and then slide along the straight slide 241 to abut against the inner wall of the straight slide 241. Based on this design, on the one hand, when the elastic clamping mechanism 3 abuts against the support frame 1, the limiting slide post 13 abuts against the inner wall of the straight slide 241, thus realizing the limiting function of the limiting mechanism 2 on the support frame 1. With the cooperation of the limiting mechanism 2 and the elastic clamping mechanism 3, the support frame 1 can be fixed. On the other hand, since there will be vibration during the operation of the UAV, the design of the straight slide 241 offsets the limiting slide post 13 from the vertical slide 242, preventing the limiting slide post 13 from falling out of the limiting slide 24, which can ensure the stability of the support frame 1.

[0071] Reference Figure 5 and Figure 6 The elastic clamping mechanism 3 includes a mounting base 31, a push rod 32, and an abutment spring 33. The mounting base 31 is used to install on the UAV. The push rod 32 is arranged along the length direction of the support frame 1. The push rod 32 is slidably connected to the mounting base 31 along its own length direction. The abutment spring 33 is sleeved on the outside of the push rod 32. One end of the abutment spring 33 is connected to the push rod 32, and the other end is connected to the mounting base 31. One end of the push rod 32 abuts against the support frame 1 along its length direction.

[0072] The elastic clamping mechanism 3, through the cooperative design of the mounting base 31, the push rod 32, and the abutment spring 33, allows the support frame 1 to be inserted between the elastic clamping mechanism 3 and the limiting mechanism 2 before installation. Before installation, the push rod 32 is manually pushed away from the limiting mechanism 2, compressing the abutment spring 33 and increasing the distance between the push rod 32 and the limiting mechanism 2. When the support frame 1 is inserted between the elastic clamping mechanism 3 and the limiting mechanism 2, the force applied to the push rod 32 is released, and the elastic restoring force of the abutment spring 33 pushes the push rod 32 forward to clamp the support frame 1, achieving rapid fixation. Therefore, the cooperative design of the mounting base 31, the push rod 32, and the abutment spring 33 realizes the function of the elastic clamping mechanism 3.

[0073] Reference Figure 5 and Figure 6 In this embodiment, the mounting base 31 has several through holes, and the mounting base 31 is connected to the corresponding position on the drone by bolts.

[0074] Reference Figure 5 and Figure 6 The support frame 1 is provided with a positioning seat 14 at one end facing the top rod 32. The positioning seat 14 is provided with a locking groove 141 on the side facing the top rod 32. The top rod 32 is inserted into the locking groove 141.

[0075] The opening of the positioning seat 14 and the locking groove 141 on the positioning seat 14 allows the top rod 32 to abut against the positioning seat 14 and insert into the locking groove 141 on the positioning seat 14 when the support frame 1 is installed. This can improve the reliability of the connection between the top rod 32 and the support frame 1 and reduce the possibility of the top rod 32 disengaging from the support frame 1.

[0076] Reference Figure 5 and Figure 6 In this embodiment, a guide groove 311 is provided on the mounting base 31. The length direction of the guide groove 311 is along the length direction of the support frame 1, and the guide groove 311 penetrates the side of the mounting base 31 facing the support frame 1. The push rod 32 and the abutment spring 33 are both located in the guide groove 311. The guide groove 311 penetrates the side of the mounting base 31 facing the hydrogen cylinder 100, and the positioning seat 14 is inserted into the guide groove 311.

[0077] The guide groove 311 provides the mounting base 31 with limiting and guiding functions for the movement of the push rod 32, thereby improving the stability of the push rod 32's movement. Furthermore, the mounting base 31 also limits and guides the compression and extension of the abutment spring 33, preventing the abutment spring 33 from twisting or shifting during deformation, thus improving the working stability and reliability of the elastic clamping mechanism 3. In addition, the guide groove 311 facilitates the installation and maintenance of the push rod 32 and the abutment spring 33, improving the operability of the device.

[0078] The support frame 1, binding seat 111, lifting handle 12, base plate 21, side plate 22, limiting slide column 13, mounting seat 31, top rod 32 and positioning seat 14 are all made of aluminum alloy.

[0079] The choice of aluminum alloy not only reduces the weight of the entire fixed structure and minimizes its impact on the drone's endurance, but also improves the strength and durability of each component, ensuring that it can withstand various loads and environmental conditions during drone flight. Specifically, the fixed structure of this application weighs less than 500 grams.

[0080] The implementation principle of this application embodiment is as follows: before installing the hydrogen cylinder 100, the hydrogen cylinder 100 is fixed to the support frame 1 by the strap 11.

[0081] When installing the hydrogen cylinder 100, align the limiting slide pin 13 on the support frame 1 with the vertical slide groove 242 on the limiting mechanism 2 and insert it. Simultaneously, push the push rod 32, thereby compressing the abutment spring 33. This ensures that the elastic clamping mechanism 3 does not interfere with the insertion of the support frame 1 between the limiting mechanism 2 and the elastic clamping mechanism 3. After the support frame 1 is fully inserted, release the force applied to the push rod 32. The abutment spring 33 resets and pushes the push rod 32 forward, inserting it into the locking groove 141 on the positioning seat 14. The push rod 32 also pushes the support frame 1 to continue moving. At this time, the limiting slide pin 13 slides within the linear slide groove 241 until it abuts against the corresponding inner wall of the linear slide groove 241, at which point the support frame 1 is fixed.

[0082] When disassembling the hydrogen cylinder 100, push the push rod 32 to separate it from the positioning seat 14. At this time, the pushing force of the elastic clamping mechanism 3 on the support frame 1 disappears, and the push rod 32 no longer has a locking function on the support frame 1. At this time, the support frame 1 can slide along its own length direction, which allows the support frame 1 to be pulled out from between the elastic clamping mechanism 3 and the limiting mechanism 2. This allows the support frame 1 and the hydrogen cylinder 100 to be disassembled.

[0083] Example 2: A hydrogen cylinder fixing structure for a drone, referring to... Figure 7 and Figure 8 The difference between this embodiment and embodiment 1 is that it also includes a locking mechanism 4, which includes a base 41. The base 41 is installed on the drone and is located between the limiting mechanism 2 and the elastic clamping mechanism 3.

[0084] Reference Figure 8 In this embodiment, the base 41 has several through holes, and the base 41 is connected to the corresponding position on the drone by bolts.

[0085] Reference Figure 7 and Figure 8 The locking mechanism 4 also includes a first arc rod 42 and a second arc rod 43. Both the first arc rod 42 and the second arc rod 43 are mounted on the base 41. The first arc rod 42 and the second arc rod 43 are spaced apart along the width direction of the support frame 1. One end of the first arc rod 42 is rotatably connected to the base 41 along its own length direction, and the other end extends away from the base 41. A first rotation reset member 44 is provided between the first arc rod 42 and the base 41. One end of the second arc rod 43 is rotatably connected to the base 41 along its own length direction, and the other end extends away from the base 41. A second rotation reset member 45 is provided between the second arc rod 43 and the base 41.

[0086] Reference Figure 7 and Figure 8A mounting hole 46 is formed between the first arc rod 42, the second arc rod 43 and the base 41. The support frame 1 and the hydrogen cylinder 100 are both located in the mounting hole 46. The end of the first arc rod 42 away from the base 41 along its own length direction abuts against the outer wall of the hydrogen cylinder 100, and the end of the second arc rod 43 away from the base 41 along its own length direction abuts against the outer wall of the hydrogen cylinder 100.

[0087] Reference Figure 7 and Figure 8 The first arc rod 42, at one end away from the base 41 along its own length direction, and the second arc rod 43, at one end away from the base 41 along its own length direction, are spaced apart to form an insertion groove 47, which is connected to the mounting hole 46.

[0088] The locking mechanism 4, through the cooperative design of the first arc rod 42 and the second arc rod 43, allows the hydrogen cylinder 100 to be directly inserted into the mounting hole 46 via the insertion slot 47 during installation. After the hydrogen cylinder 100 is inserted into the mounting hole 46, the first rotation reset member 44 and the second rotation reset member 45 automatically reset the first arc rod 42 and the second arc rod 43. This allows the first arc rod 42 and the second arc rod 43 to cooperate in locking and fixing the hydrogen cylinder 100 inserted into the mounting hole 46, thereby achieving automatic fixing of the hydrogen cylinder 100, improving the stability of the fixing of the hydrogen cylinder 100 and the convenience of installation.

[0089] Reference Figure 8 In this embodiment, both the first rotating reset member 44 and the second rotating reset member 45 are torsion springs. The torsion springs provide a stable reset force, ensuring that the first arc rod 42 and the second arc rod 43 always maintain appropriate tension. Thus, during the process of inserting the hydrogen cylinder 100 into the mounting hole 46, the first arc rod 42 and the second arc rod 43 can cooperate to automatically clamp the hydrogen cylinder 100, and at the same time, the hydrogen cylinder 100 can be easily released during disassembly.

[0090] The implementation principle of this application embodiment is as follows: when installing the hydrogen cylinder 100, the operator only needs to align the hydrogen cylinder 100 with the insertion slot 47 and insert it into the installation card hole 46.

[0091] Because the first arc rod 42 and the second arc rod 43 remain open under the action of the torsion spring, during the insertion of the hydrogen cylinder 100 into the mounting hole 46, the hydrogen cylinder 100 automatically pushes the first arc rod 42 and the second arc rod 43 to rotate towards the base 41. When the hydrogen cylinder 100 is fully inserted into the mounting hole 46, the first arc rod 42 and the second arc rod 43 automatically return to their original positions to contact the outer wall of the hydrogen cylinder 100, thus automatically fixing the hydrogen cylinder 100. When disassembling the hydrogen cylinder 100, the operator only needs to pull the hydrogen cylinder 100 to overcome the tension of the torsion spring and smoothly remove the hydrogen cylinder 100 from the mounting hole 46.

[0092] Therefore, the locking mechanism 4 works in conjunction with the limiting mechanism 2 and the elastic clamping mechanism 3. The limiting mechanism 2 and the elastic clamping mechanism 3 work together to limit the length of the support frame 1 and the hydrogen cylinder 100, while the locking mechanism 4 limits the vertical length of the support frame 1 and the hydrogen cylinder 100. This can improve the stability of fixing the hydrogen cylinder 100.

[0093] Example 3: A hydrogen cylinder fixing structure for a drone, referring to... Figure 9 and Figure 10 The difference between this embodiment and embodiment 2 is that a linkage locking mechanism 5 is provided between the base 41 and the support frame 1.

[0094] Reference Figure 10 and Figure 11 The linkage locking mechanism 5 includes a linear slide plate 51, which is mounted on the base 41 and slidably connected to the base 41 along the length of the support frame 1. A linkage groove 511 is provided on the side of the linear slide plate facing the support frame 1, and a linkage block 15 is provided on the side of the support frame 1 facing the base 41. The linkage block 15 is fixedly connected to the support frame 1 and engages with the linkage groove 511.

[0095] The linear slide plate 51 and the linkage block 15 are designed to work together so that when the support frame 1 and the hydrogen cylinder 100 are inserted into the mounting holes 46, the linkage block 15 is inserted into the linkage slot 511. At this time, the movement of the support frame 1 along its own length will drive the linear slide plate 51 to move synchronously. Therefore, during the installation of the hydrogen cylinder 100, the elastic clamping mechanism 3 will push the support frame 1 to move, which will cause the linear slide plate 51 to move synchronously.

[0096] Reference Figure 10 and Figure 12 Both the first arc rod 42 and the second arc rod 43 are connected to the linear slide plate 51 by a connecting rod assembly 52. ​​In this embodiment, the connecting rod assembly 52 between the first arc rod 42 and the linear slide plate 51 and the connecting rod assembly 52 between the second arc rod 43 and the linear slide plate 51 have the same structure. This embodiment will be described using the connecting rod assembly 52 between the first arc rod 42 and the linear slide plate 51 as an example.

[0097] Reference Figure 10 and Figure 12 The linkage assembly 52 includes a reversing rod 521 and a vertical rod 522. The length direction of the vertical rod 522 is arranged along the interval direction between the base 41 and the support frame 1. One end of the reversing rod 521 is rotatably connected to the linear slide plate 51, and the other end is rotatably connected to the vertical rod 522.

[0098] Based on the coordinated arrangement of the linear slide plate 51, the vertical rod 522 and the reversing rod 521, when the linear slide plate 51 slides along the length direction of the support frame 1, the reversing rod 521 moves accordingly along its own length direction under the action of the vertical rod 522.

[0099] Reference Figure 12 and Figure 13 In this embodiment, a vertical guide groove 523 is provided on the base 41, and a vertical rod 522 is inserted into the vertical guide groove 523. The vertical rod 522 is slidably connected to the vertical guide groove 523 along its own length direction.

[0100] The vertical guide groove 523 guides the movement of the vertical rod 522, ensuring that the vertical rod 522 moves along its own length.

[0101] Reference Figure 12 and Figure 13 One end of the first arc rod 42, which is rotatably connected to the base 41, extends into the base 41. The end of the first arc rod 42 located in the base 41 is rotatably connected to the vertical rod 522. Furthermore, the end of the first arc rod 42 located in the base 41 is rotatably connected to the vertical rod 522 along its own length direction.

[0102] Therefore, based on the connection between the vertical rod 522 and the first arc rod 42, when the vertical rod 522 moves along its own length direction, the end of the first arc rod 42 located in the base 41 rotates synchronously, thereby causing the first arc rod 42 to rotate synchronously.

[0103] Reference Figure 10 and Figure 12 Under the action of the connecting rod assembly 52, when the linear slide plate 51 moves along the length direction of the support frame 1, the first arc rod 42 and the second arc rod 43 both rotate inward, thereby reducing the size of the insertion slot 47 and the mounting hole 46, which realizes the automatic fixing of the hydrogen cylinder 100, thereby improving the stability of the hydrogen cylinder 100 fixing.

[0104] Reference Figure 10 and Figure 13 In this embodiment, a relief cavity 53 is provided in the base 41, and the connecting rod assembly 52 is located in the relief cavity 53.

[0105] The implementation principle of this application embodiment is as follows: When installing the hydrogen cylinder 100, align the hydrogen cylinder 100 with the insertion slot 47 and insert it into the installation card hole 46. At this time, the support frame 1 is located between the limiting mechanism 2 and the elastic pressing mechanism 3, and the linkage block 15 is inserted into the corresponding linkage slot 511.

[0106] During the process of the elastic clamping mechanism 3 and the limiting mechanism 2 working together to fix the support frame 1, the elastic clamping mechanism 3 will push the support frame 1 to move along its own length direction, which can drive the linkage block 15 to push the linear slide plate 51 to move synchronously. Based on the movement of the linear slide plate 51, under the action of the connecting rod assembly 52, the first arc rod 42 and the second arc rod 43 both rotate inward, thereby reducing the size of the insertion slot 47 and the mounting hole 46, which can automatically clamp the hydrogen cylinder 100.

[0107] Therefore, the locking mechanism 4 works in conjunction with the limiting mechanism 2 and the elastic clamping mechanism 3. The limiting mechanism 2 restricts the movement range of the support frame 1, and the elastic clamping mechanism 3 provides thrust to make the support frame 1 and the limiting mechanism 2 in close contact, further ensuring the stable fixation of the hydrogen cylinder 100. The locking mechanism 4 further limits and fixes the hydrogen cylinder 100.

[0108] When disassembling the hydrogen cylinder 100, first release the pushing force of the elastic clamping mechanism 3 on the support frame 1, and then push the support frame 1 along the length direction of the support frame 1. At this time, the limiting mechanism 2 releases the limiting force on the support frame 1, and at the same time, the linear slide plate 51 resets, causing the first arc rod 42 and the second arc rod 43 to rotate outward to expand the insertion groove 47 and the mounting hole 46. At this time, the support frame 1 and the hydrogen cylinder 100 can be pulled out directly, which facilitates the disassembly of the hydrogen cylinder 100.

[0109] Example 4: A hydrogen cylinder fixing structure for a drone, referring to... Figure 14 The difference between this embodiment and embodiment 3 is that it also includes a shield plate 6, which is arranged parallel to and spaced apart from the support frame 1, and the hydrogen cylinder 100 is located between the shield plate 6 and the support frame 1, with the shield plate 6 and the hydrogen cylinder 100 spaced apart.

[0110] The shield plate 6 provides additional protection for the hydrogen cylinder 100, preventing it from being subjected to external impacts or collisions. Maintaining a distance from the support frame 1 also prevents the impact on the shield plate 6 from being transmitted to the hydrogen cylinder 100, thus enhancing the protective effect of the shield plate on the hydrogen cylinder 100.

[0111] Reference Figure 14 A detachable connection assembly 61 is provided between the shield plate 6 and the support frame 1. The detachable connection assembly 61 includes several annular connection frames 611. The annular connection frames 611 are sleeved on the outside of the hydrogen cylinder 100, and the several annular connection frames 611 are arranged at intervals along the length direction of the support frame 1. The shield plate 6 and the support frame 1 are both connected to the several annular connection frames 611 by bolts.

[0112] The detachable connection assembly 61, through the design of several annular connecting frames 611, enables a detachable connection between the shield plate 6 and the support frame 1, thereby facilitating the optional installation of the shield plate 6.

[0113] The implementation principle of this application embodiment is as follows: the shield plate 6 provides additional protection for the hydrogen cylinder 100, preventing it from being subjected to external impacts or collisions, thereby improving the safety of the hydrogen cylinder 100 during use. Simultaneously, the detachable connection between the shield plate 6 and the support frame 1 allows the shield plate 6 to be selected for installation as needed. Without the shield plate 6, the lightweight requirements of the fixed structure are maintained; while with the shield plate 6 installed, the safety of the fixed hydrogen cylinder 100 is improved.

[0114] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A hydrogen cylinder fixing structure for a drone, characterized by include: The support frame (1), the limiting mechanism (2), and the elastic clamping mechanism (3) are used to install the support frame (1) onto the hydrogen cylinder (100), and the limiting mechanism (2) and the elastic clamping mechanism (3) are used to install the drone. The limiting mechanism (2) and the elastic abutting mechanism (3) are spaced apart. The support frame (1) is inserted between the limiting mechanism (2) and the elastic abutting mechanism (3). One end of the support frame (1) in the length direction abuts against the limiting mechanism (2), and the other end abuts against the elastic abutting mechanism (3). The elastic abutting mechanism (3) is used to push the support frame (1) to abut against the limiting mechanism (2). The elastic clamping mechanism (3) includes a mounting base (31), a push rod (32) and a contact spring (33). The push rod (32) is arranged along the length direction of the support frame (1), and one end of the push rod (32) in the length direction abuts against the support frame (1). The top rod (32) is slidably connected to the mounting base (31) along its own length direction. The abutment spring (33) is sleeved on the outside of the top rod (32). One end of the abutment spring (33) is connected to the top rod (32), and the other end is connected to the mounting base (31). The limiting mechanism (2) includes a base plate (21), and a side plate (22) is provided on the base plate (21). The side plate (22) is perpendicular to the base plate (21), and a limiting groove (24) is provided on the side plate (22). The support frame (1) is provided with a limiting slide post (13), which is inserted into the limiting slide groove (24) and is slidably connected to the inner wall of the limiting slide groove (24).

2. The hydrogen cylinder fixing structure for a drone according to claim 1, characterized by, The support frame (1), the limiting mechanism (2), the mounting base (31), and the top rod (32) are all made of aluminum alloy.

3. The hydrogen cylinder fixing structure for a drone according to claim 1, characterized by, The support frame (1) has a positioning seat (14) at one end along its length. The positioning seat (14) is positioned opposite the top rod (32). The positioning seat (14) has a locking groove (141) on the side facing the top rod (32). One end of the top rod (32) is inserted into the locking groove (141).

4. The hydrogen cylinder fixing structure for a drone according to claim 1, characterized by There are two side plates (22), both of which are set on the base plate (21), and the two side plates (22) are arranged in parallel and spaced apart to form positioning slots (23), and the support frame (1) is engaged with the positioning slots (23).

5. The hydrogen cylinder fixing structure for a drone according to claim 1, characterized in that, The support frame (1) is provided with a plurality of straps (11), and the plurality of straps (11) are arranged at intervals along the length direction of the support frame (1). The straps (11) are used to fix the hydrogen cylinder (100).

6. The hydrogen cylinder fixing structure for a drone according to claim 1, characterized in that, The support frame (1) is provided with a lifting handle (12).

7. The hydrogen cylinder fixing structure for a drone according to claim 1, characterized in that, It also includes a locking mechanism (4), which includes a base (41) for mounting to the drone, and the base (41) is located between the limiting mechanism (2) and the elastic clamping mechanism (3); The base (41) is provided with a first arc rod (42) and a second arc rod (43). The first arc rod (42) and the second arc rod (43) are spaced apart along the width direction of the support frame (1). A mounting hole (46) is formed between the first arc rod (42), the second arc rod (43) and the base (41). The support frame (1) is located in the mounting hole (46), and the mounting hole (46) is used to fix the hydrogen cylinder (100). One end of the first arc rod (42) is rotatably connected to the base (41), and a first rotation reset member (44) is provided between the first arc rod (42) and the base (41). One end of the second arc rod (43) is rotatably connected to the base (41), and a second rotation reset member (45) is provided between the second arc rod (43) and the base (41). The end of the first arc rod (42) away from the base (41) and the end of the second arc rod (43) at a distance from the base (41) form an insertion groove (47).

8. The hydrogen cylinder fixing structure for a drone according to claim 1, characterized in that, It also includes a shield plate (6), which is arranged parallel to and spaced apart from the support frame (1). The shield plate (6) is provided with a detachable connection component (61), which is detachably connected to the support frame (1).

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